Steam-turbine.



G. W. DAKE.

STEAM TURBINE. APPLIGATIQN FILED JUNE 12, 1912.

:1;o9s,s16.

FIG-1.

3 SHEETS-SHEET 1.

(mafia: -W, Puke.

WITNESSES:

ATTORNEYS Patented May 26, 1914.

0. W. FAKE; STEAM TURBINE.

APPLICATION FILED JUNE 12, 1912.

Patented May 26, 1914.

3 SHEETSSHEET 2.-

7am u A M M R T I m m? A N G. W. DAKE.

STE-AM TURBINE.

APPLIOATION FILED JUNE 12, 1912.

1,098,31 Y Patented May 26,1914;

' 3 SHEETS-SHEET 3.

FIG-4n WITNESSES: l/Vl/ENTOH WMZ/ZMI W 97% ATTORNEYS fragmentary and. diagrammatic, but is.-

r as follows: Assuming the structure Inadc as -of apparatus, ut I have not shown a--com-1 UNITED sur s PATENT carr er.

crmnnns w. mum, on cmcaco, ILLINoIs, assrdnoa TO sm siimtatmq nnantren'r COMPANY, or CHICAGO,.ILLINOIS, A coaronarxouornnwmnsnt.

srmn-ruanmn.

, Specification of Lette Patent Patented Meiji 26,1514.

muses filed June 12, 1912. emu in. 703,128. a

To all whom it mag concern:

Be it'known that I, CHARLES W. DAKE, a citizen of theUnited States, residing at Chicago, in' the county of Cook and State of Illinois, have invented a certain new and useful Improvement in S earn-Turbines, of which the following is a specification.

My invention relates to steam turbines and 'is illustrated somewhat diagrammatically iIM .the accompanying drawings, wherein- Figure 1 is a detail section through a portion of'the turbine; Fig. 2 is a detail section through aportion of the turbine; Fig. 3. is' an enlarged'det ail view of a portionof what is illustrated in Fig. 1 g. 4 is a side elevja- :tion of a ring which forms one side of each of the buckets and one side of one of the steam passageways; Fig. 5 is a side elevation of thering which separatcsthe two friction passages. 1

Like parts'are indicated merals-in all the figures.

1 is one side of the casing,'only a portion of it being shown. 2 is the other side of the'casing, only a portion of it being shown.

3 is thesteam inlet, 4 the exhaust outlet, 5 the steam passageway-which leads to the nozzle 6, and 7,i's'the spider of the rotormounted on the shaft 11 and'secured in position by the nut 12%. v

8, 8 are the buckets of a steam turbine and 9 and 10 the rings which form the sides of the bucket and the sides of the two annular "slots throu h which the steam passes. 12, 12 are the bolts whereby the ring ,9 is held on and againstthe edges of-the buckets to complete them. 13, 13 are the other-sides of the buckets and the means whereby. the buckets are attached to the rotor. These ,parts are not here more specifically described because they are the sil ject matter of an. other application.-,

"The drawin s illustrate alpractical form by the same nuplete structure and the showing is in a sense sufiicient to illustrate theinvention I v The use and operation of my Invention are illustratedin Fig. 1 andcompleted so as to have'a finished casing with thebuckets-and' annular slots all the wa around, the steam, a'ndbjr thisterm it 'wi beunderstood that '21s 6.- Thisn'ozzle discharges onjboth'i'sides of the sharpened-ring 10jinto the two' ann ular slots and is set so that its current of steam is directed at an inclination to the'tan gent ofthe-rotor. the steam passes forwardly and outwardl through the annular slots thus :formed in t e rotor,'it tends tose't V the steam nozzle 6,.the steam .canbev caused to pass out'of the annular slots 10 at all points around them perlpheries sothat allthe buck,-

- cts are receiving some of thefstam and veach is contributing something to the forward motion of the rotor.. The steam fiiiallyfescapes from the buckets into, thefcasing, whence a is led or dischargedih any de sired manner: Thus in my steam turbine I combine .the: frictional a'ctioiil of the steam with the action due to its-deflection toireact upon the steam so as-to increase frictional action,

By the term bucket, or reversing bucket as I am using it, I wish it to be understood as including all those forms of buckets. wherein and whereby the current-isreiiersed or where thccu'rrent comes into thcflbiiqket from one direction andlaves it-in a ieverse direction. The point is that the bucket should be such that'the current whicheis disI-i charged into it in the general directionot rotation of the bucket leaves'it in a reverse direction so'that the bucket is'advancediby the reaction ofthe reversed curreut., The

arrangementof the slot with reference to,

thebuckets is such that ecurrent'of fluid is discharged into both inthegeneral diree;

tion of their forward motion and jrom'the discharge of the bucket in'the p: Eosite direction; Thus. the rotorii's-adyanced .7

have shown the bucketsas on the: periphery .of the rotor, the slots-as associated therewith the'friction of the current oi materialfin.

* the slot and,by;its impact on the bucket. ,1;

and the nozzle or means =forisull plying the current as interior to the who yiou'sly the, three parts can be arran ed 'I-mean to include any driving fluid',-is introduced thrcugh the passageways and noz-f.

any desired manner to bring abel l'tft ejre I claim:

1. A turbine comprising a casing and a rotoreh'aving an annular slot thereabout and reversing buckets into which the slot opens and means for discharging a current 01 fluid into the slot and buckets in the general dii'ection of their rotation.

QQ A turbine comprising a casing, a rotor having an annular slot thereabout and-rea series of buckets beyond the slot and openpassage and means for discharging a current v of fluid "into the slot and buckets.

thereinto and each having a reversing 4. Aturbine comprising a casing and a rotor having a series of annular slots and a series of peripherally arranged buckets, the slots opening into the buckets, and a nozzle for supplying the driving fluid to the slots.

I dam of thin patent'may be obtained for 5. A turbine comprising acasing and a rotor having a series of annular slots and a series of peripherally arranged buckets, the slots opening int-o the buckets, and a nozzle for supplying the driving fluid to the slots, the cross sectional area of the buckets and .nozzle being such as to increase the pressure of the same in the slots before it escapes into the buckets.

6. A turbine comprising a casing, a rotor, a seriesof buckets on the. rotor, a ring to form the outer edges of the buckets but in- Wardly projecting beyond the buckets, a second ring secured to. the edges of the buckets between the rotor wall and the first ring so as to form tWo annular slots and a nozzle adapted to discharge steam from within the annular slots thereinto.

Signed at Chicago, Illinois, this 10th day of June, 1912.

CHARLES W. DAKE.

five cents each,'by addressing the "Commissioner of Eatnto, Washington, D. 6. 1 

